Cita APA (7th ed.)

Fell, B. (1974). Life, space, and time: A course in environmental biology. Harper & Row.

Cita Chicago (17th ed.)

Fell, Barry. Life, Space, and Time: A Course in Environmental Biology. New York: Harper & Row, 1974.

Cita MLA (9th ed.)

Fell, Barry. Life, Space, and Time: A Course in Environmental Biology. Harper & Row, 1974.